Audio mixer



FIG. 1 is a front, right, and top perspective view of an audio mixer, showing my design.

FIG. 2 is a rear, left, and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a partial enlarged view of an area labeled 9 in FIG. 1 comprising at least one adjusting knob.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the audio mixer that form no part of the claimed design. 

CLAIM The ornamental design for an audio mixer, as shown and described. 